Retinal detachment

The retina is a thin, transparent layer of light-sensitive
tissue that covers the inside of the eyeball, and the
image of the outside world is formed on this sensitive
layer. The retina is made up of two layers of pigment
epithelium and a sensory or nerve layer. The term retinal
detachment refers to the separation of the sensory layer
of the retina from the pigment epithelium layer, and thus
the image of the outside world is not formed properly
on it, causing visual field disturbances and subsequent
severe vision loss, which, if left untreated, ultimately
leads to blindness.